System.InvalidCastException：无法在 MySqlConnector.Core.Row.GetInt32（Int32 序号）处将 VarChar 转换为 Int32
System.InvalidCastException: Can't convert VarChar to Int32 at MySqlConnector.Core.Row.GetInt32(Int32 ordinal)
我有一个 API 带有一个名为 Token Controller 的控制器，它验证用户并提供一个令牌。
问题是直到现在它都工作得很好，我没有改变任何东西所以我不知道发生了什么。请帮忙。
这是我的令牌控制器的代码
public TokenController(IConfiguration configuration, ICrUserInfoService crUserInfoService, IPasswordService passwordService)
{
_configuration = configuration;
_crUserInfoService = crUserInfoService;
_passwordService = passwordService;
}
[HttpPost]
public async Task<IActionResult> Authentication(UserLogin login)
{
//if it is a valid user
var validation = await IsValidUser(login);
if (validation.Item1)
{
var token = GenerateToken(validation.Item2);
return Ok(new { token });
}
return NotFound("Unvalid User");
}
private async Task<(bool, CrUserInfo)> IsValidUser(UserLogin login)
{
var user = await _crUserInfoService.GetLoginByCredentials(login);
bool isValid;
if (user == null)
{
isValid = false;
}
else
{
isValid = _passwordService.Check(user.Password, login.Password);
}
return (isValid, user);
}
private string GenerateToken(CrUserInfo user)
{
//Header
var symmetricSecurityKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_configuration["Authentication:SecretKey"]));
var signingCredentials = new SigningCredentials(symmetricSecurityKey, SecurityAlgorithms.HmacSha256);
var header = new JwtHeader(signingCredentials);
//Claims
var claims = new[]
{
new Claim(ClaimTypes.Name, user.Username),
new Claim("User", user.Displayname),
new Claim(ClaimTypes.Role, user.Role.ToString()),
};
//Payload
var payload = new JwtPayload
(
_configuration["Authentication:Issuer"],
_configuration["Authentication:Audience"],
claims,
DateTime.Now,
DateTime.Now.AddMinutes(30)
);
var token = new JwtSecurityToken(header, payload);
return new JwtSecurityTokenHandler().WriteToken(token);
}
}
正如我所说，它到目前为止工作正常，这是错误
System.InvalidCastException: Can't convert VarChar to Int32
at MySqlConnector.Core.Row.GetInt32(Int32 ordinal) in /_/src/MySqlConnector/Core/Row.cs:line 223
at MySqlConnector.MySqlDataReader.GetInt32(Int32 ordinal) in /_/src/MySqlConnector/MySqlDataReader.cs:line 242
at lambda_method23(Closure , QueryContext , DbDataReader , ResultContext , SingleQueryResultCoordinator )
at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable`1.AsyncEnumerator.MoveNextAsync()
at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable`1 asyncEnumerable, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable`1 asyncEnumerable, CancellationToken cancellationToken)
at Crijoya.Infrastructure.Repositories.CrUserInfoRepository.GetLoginByCredentials(UserLogin login) in C:\Users\USER\source\repos\Api Crijoya\Crijoya.Data\Repositories\CrUserInfoRepository.cs:line 15
at Crijoya.Core.Services.CrUserInfoService.GetLoginByCredentials(UserLogin userLogin) in C:\Users\USER\source\repos\Api Crijoya\Crijoya.Model\Services\CrUserInfoService.cs:line 20
at Api_Crijoya.Controllers.TokenController.IsValidUser(UserLogin login) in C:\Users\USER\source\repos\Api Crijoya\Api Crijoya\Controllers\TokenController.cs:line 51
at Api_Crijoya.Controllers.TokenController.Authentication(UserLogin login) in C:\Users\USER\source\repos\Api Crijoya\Api Crijoya\Controllers\TokenController.cs:line 40
at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextExceptionFilterAsync>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ExceptionContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
我不确定问题出在代码中，因为我说它在几分钟前工作并提供了正确的令牌。请帮助我不知道如何处理这个问题。
编辑:
包含用户和密码的我的实体 CrUserInfo 的存储库
public CrUserInfoRepository(db_crijoyaContext context) : base(context) { }
public async Task<CrUserInfo> GetLoginByCredentials(UserLogin login)
{
return await _entities.FirstOrDefaultAsync(x => x.Username == login.User);
}
这是我的实体 CrUserInfo
public partial class CrUserInfo : BaseEntity
{
// public int IdUserInfo { get; set; }
public int IdUser { get; set; }
public string Displayname { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public RoleType Role { get; set; }
public virtual CrUser IdUserNavigation { get; set; }
}
我的 Dto 实体
public class CrUserInfoDto
{
public int Id { get; set; }
public int IdUser { get; set; }
public string Displayname { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public RoleType Role { get; set; }
}
我的数据库
这是脚本
CREATE TABLE `cr_userInfo` (
`id_userInfo` int(6) unsigned NOT NULL AUTO_INCREMENT,
`id_user` int(6) unsigned NOT NULL,
`displayname` varchar(50) NOT NULL,
`username` varchar(50) NOT NULL,
`password` varchar(255) NOT NULL,
`role` varchar(30) NOT NULL,
PRIMARY KEY (`id_userInfo`) USING BTREE,
UNIQUE KEY `id_user` (`id_user`) USING BTREE,
CONSTRAINT `cr_userInfo_ibfk_1` FOREIGN KEY (`id_user`) REFERENCES `cr_user` (`id_user`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8
这是它在停止工作之前所做的事情
正在创建代码模型：
modelBuilder.Entity<CrUser>(entity =>
{
entity.HasKey(e => e.Id)
.HasName("PRIMARY");
entity.ToTable("cr_user");
entity.HasIndex(e => e.IdCompany, "company");
entity.Property(e => e.Id)
.HasColumnType("uint(6) unsigned")
.HasColumnName("id_user");
entity.Property(e => e.Active)
.HasColumnType("tinyint(1) unsigned")
.HasColumnName("active")
.HasDefaultValueSql("'1'");
entity.Property(e => e.IdCompany)
.HasColumnType("int(6) unsigned")
.HasColumnName("id_company");
entity.Property(e => e.Warehouse)
.HasColumnType("int(6)")
.HasColumnName("warehouse")
.HasDefaultValueSql("'NULL'");
entity.HasOne(d => d.IdCompanyNavigation)
.WithMany(p => p.CrUsers)
.HasForeignKey(d => d.IdCompany)
.OnDelete(DeleteBehavior.ClientSetNull)
.HasConstraintName("cr_user_ibfk_1");
});
modelBuilder.Entity<CrUserInfo>(entity =>
{
entity.HasKey(e => e.Id)
.HasName("PRIMARY");
entity.ToTable("cr_userInfo");
entity.HasIndex(e => e.IdUser, "id_user")
.IsUnique();
entity.Property(e => e.Id)
.HasColumnType("uint(6) unsigned")
.HasColumnName("id_userInfo");
entity.Property(e => e.Displayname)
.IsRequired()
.HasMaxLength(50)
.HasColumnName("displayname");
entity.Property(e => e.IdUser)
.HasColumnType("int(6) unsigned")
.HasColumnName("id_user");
entity.Property(e => e.Password)
.IsRequired()
.HasMaxLength(255)
.HasColumnName("password");
entity.Property(e => e.Role)
.IsRequired()
.HasMaxLength(30)
.HasColumnName("role");
entity.Property(e => e.Username)
.IsRequired()
.HasMaxLength(50)
.HasColumnName("username");
entity.HasOne(d => d.IdUserNavigation)
.WithOne(p => p.CrUserInfo)
.HasForeignKey<CrUserInfo>(d => d.IdUser)
.HasConstraintName("cr_userInfo_ibfk_1");
});
您必须从这里更新您的 OnModelCreating 代码：
entity.Property(e => e.Role)
.IsRequired()
.HasMaxLength(30)
.HasColumnName("role");
表示应该是string:
entity.Property(e => e.Role)
.IsRequired()
.HasMaxLength(30)
.HasColumnName("role")
.HasConversion<string>();
根据documentation，这应该会在数据库varchar类型和C#中的RoleType之间自动转换：
For example, enum to string conversions are used as an example above, but EF Core will actually do this automatically when the provider type is configured as string using the generic type of HasConversion:
我有一个 API 带有一个名为 Token Controller 的控制器，它验证用户并提供一个令牌。
问题是直到现在它都工作得很好，我没有改变任何东西所以我不知道发生了什么。请帮忙。
这是我的令牌控制器的代码
public TokenController(IConfiguration configuration, ICrUserInfoService crUserInfoService, IPasswordService passwordService)
{
_configuration = configuration;
_crUserInfoService = crUserInfoService;
_passwordService = passwordService;
}
[HttpPost]
public async Task<IActionResult> Authentication(UserLogin login)
{
//if it is a valid user
var validation = await IsValidUser(login);
if (validation.Item1)
{
var token = GenerateToken(validation.Item2);
return Ok(new { token });
}
return NotFound("Unvalid User");
}
private async Task<(bool, CrUserInfo)> IsValidUser(UserLogin login)
{
var user = await _crUserInfoService.GetLoginByCredentials(login);
bool isValid;
if (user == null)
{
isValid = false;
}
else
{
isValid = _passwordService.Check(user.Password, login.Password);
}
return (isValid, user);
}
private string GenerateToken(CrUserInfo user)
{
//Header
var symmetricSecurityKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_configuration["Authentication:SecretKey"]));
var signingCredentials = new SigningCredentials(symmetricSecurityKey, SecurityAlgorithms.HmacSha256);
var header = new JwtHeader(signingCredentials);
//Claims
var claims = new[]
{
new Claim(ClaimTypes.Name, user.Username),
new Claim("User", user.Displayname),
new Claim(ClaimTypes.Role, user.Role.ToString()),
};
//Payload
var payload = new JwtPayload
(
_configuration["Authentication:Issuer"],
_configuration["Authentication:Audience"],
claims,
DateTime.Now,
DateTime.Now.AddMinutes(30)
);
var token = new JwtSecurityToken(header, payload);
return new JwtSecurityTokenHandler().WriteToken(token);
}
}
正如我所说，它到目前为止工作正常，这是错误
System.InvalidCastException: Can't convert VarChar to Int32
at MySqlConnector.Core.Row.GetInt32(Int32 ordinal) in /_/src/MySqlConnector/Core/Row.cs:line 223
at MySqlConnector.MySqlDataReader.GetInt32(Int32 ordinal) in /_/src/MySqlConnector/MySqlDataReader.cs:line 242
at lambda_method23(Closure , QueryContext , DbDataReader , ResultContext , SingleQueryResultCoordinator )
at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable`1.AsyncEnumerator.MoveNextAsync()
at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable`1 asyncEnumerable, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable`1 asyncEnumerable, CancellationToken cancellationToken)
at Crijoya.Infrastructure.Repositories.CrUserInfoRepository.GetLoginByCredentials(UserLogin login) in C:\Users\USER\source\repos\Api Crijoya\Crijoya.Data\Repositories\CrUserInfoRepository.cs:line 15
at Crijoya.Core.Services.CrUserInfoService.GetLoginByCredentials(UserLogin userLogin) in C:\Users\USER\source\repos\Api Crijoya\Crijoya.Model\Services\CrUserInfoService.cs:line 20
at Api_Crijoya.Controllers.TokenController.IsValidUser(UserLogin login) in C:\Users\USER\source\repos\Api Crijoya\Api Crijoya\Controllers\TokenController.cs:line 51
at Api_Crijoya.Controllers.TokenController.Authentication(UserLogin login) in C:\Users\USER\source\repos\Api Crijoya\Api Crijoya\Controllers\TokenController.cs:line 40
at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextExceptionFilterAsync>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ExceptionContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
我不确定问题出在代码中，因为我说它在几分钟前工作并提供了正确的令牌。请帮助我不知道如何处理这个问题。
编辑:
包含用户和密码的我的实体 CrUserInfo 的存储库
public CrUserInfoRepository(db_crijoyaContext context) : base(context) { }
public async Task<CrUserInfo> GetLoginByCredentials(UserLogin login)
{
return await _entities.FirstOrDefaultAsync(x => x.Username == login.User);
}
这是我的实体 CrUserInfo
public partial class CrUserInfo : BaseEntity
{
// public int IdUserInfo { get; set; }
public int IdUser { get; set; }
public string Displayname { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public RoleType Role { get; set; }
public virtual CrUser IdUserNavigation { get; set; }
}
我的 Dto 实体
public class CrUserInfoDto
{
public int Id { get; set; }
public int IdUser { get; set; }
public string Displayname { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public RoleType Role { get; set; }
}
我的数据库
这是脚本
CREATE TABLE `cr_userInfo` (
`id_userInfo` int(6) unsigned NOT NULL AUTO_INCREMENT,
`id_user` int(6) unsigned NOT NULL,
`displayname` varchar(50) NOT NULL,
`username` varchar(50) NOT NULL,
`password` varchar(255) NOT NULL,
`role` varchar(30) NOT NULL,
PRIMARY KEY (`id_userInfo`) USING BTREE,
UNIQUE KEY `id_user` (`id_user`) USING BTREE,
CONSTRAINT `cr_userInfo_ibfk_1` FOREIGN KEY (`id_user`) REFERENCES `cr_user` (`id_user`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8
这是它在停止工作之前所做的事情
正在创建代码模型：
modelBuilder.Entity<CrUser>(entity =>
{
entity.HasKey(e => e.Id)
.HasName("PRIMARY");
entity.ToTable("cr_user");
entity.HasIndex(e => e.IdCompany, "company");
entity.Property(e => e.Id)
.HasColumnType("uint(6) unsigned")
.HasColumnName("id_user");
entity.Property(e => e.Active)
.HasColumnType("tinyint(1) unsigned")
.HasColumnName("active")
.HasDefaultValueSql("'1'");
entity.Property(e => e.IdCompany)
.HasColumnType("int(6) unsigned")
.HasColumnName("id_company");
entity.Property(e => e.Warehouse)
.HasColumnType("int(6)")
.HasColumnName("warehouse")
.HasDefaultValueSql("'NULL'");
entity.HasOne(d => d.IdCompanyNavigation)
.WithMany(p => p.CrUsers)
.HasForeignKey(d => d.IdCompany)
.OnDelete(DeleteBehavior.ClientSetNull)
.HasConstraintName("cr_user_ibfk_1");
});
modelBuilder.Entity<CrUserInfo>(entity =>
{
entity.HasKey(e => e.Id)
.HasName("PRIMARY");
entity.ToTable("cr_userInfo");
entity.HasIndex(e => e.IdUser, "id_user")
.IsUnique();
entity.Property(e => e.Id)
.HasColumnType("uint(6) unsigned")
.HasColumnName("id_userInfo");
entity.Property(e => e.Displayname)
.IsRequired()
.HasMaxLength(50)
.HasColumnName("displayname");
entity.Property(e => e.IdUser)
.HasColumnType("int(6) unsigned")
.HasColumnName("id_user");
entity.Property(e => e.Password)
.IsRequired()
.HasMaxLength(255)
.HasColumnName("password");
entity.Property(e => e.Role)
.IsRequired()
.HasMaxLength(30)
.HasColumnName("role");
entity.Property(e => e.Username)
.IsRequired()
.HasMaxLength(50)
.HasColumnName("username");
entity.HasOne(d => d.IdUserNavigation)
.WithOne(p => p.CrUserInfo)
.HasForeignKey<CrUserInfo>(d => d.IdUser)
.HasConstraintName("cr_userInfo_ibfk_1");
});
您必须从这里更新您的 OnModelCreating 代码：
entity.Property(e => e.Role)
.IsRequired()
.HasMaxLength(30)
.HasColumnName("role");
表示应该是string:
entity.Property(e => e.Role)
.IsRequired()
.HasMaxLength(30)
.HasColumnName("role")
.HasConversion<string>();
根据documentation，这应该会在数据库varchar类型和C#中的RoleType之间自动转换：
For example, enum to string conversions are used as an example above, but EF Core will actually do this automatically when the provider type is configured as string using the generic type of
HasConversion: